Simplification of probability density ...
Document type :
Article dans une revue scientifique: Article original
DOI :
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Title :
Simplification of probability density function using trapezoidal method in impulsive noise
Author(s) :
Mostari, Latifa [Auteur]
Université des sciences et de la Technologie d'Oran Mohamed Boudiaf [Oran] [USTO MB]
Goupil, Alban [Auteur]
Centre de Recherche en Sciences et Technologies de l'Information et de la Communication - EA 3804 [CRESTIC]
Tahleb Ahmed, Abdelmalik [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
COMmunications NUMériques - IEMN [COMNUM - IEMN]
Université des sciences et de la Technologie d'Oran Mohamed Boudiaf [Oran] [USTO MB]
Goupil, Alban [Auteur]
Centre de Recherche en Sciences et Technologies de l'Information et de la Communication - EA 3804 [CRESTIC]
Tahleb Ahmed, Abdelmalik [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
COMmunications NUMériques - IEMN [COMNUM - IEMN]
Journal title :
Studies in Engineering and Exact Sciences
Pages :
e12004
Publication date :
2024-12-12
ISSN :
2764-0981
English keyword(s) :
LLR
PDF
BPSK
Simplification
Trapezoidal Method
Impulsive Noise
LDPC Code
BPSK
Simplification
Trapezoidal Method
Impulsive Noise
LDPC Code
HAL domain(s) :
Informatique [cs]/Traitement du signal et de l'image [eess.SP]
English abstract : [en]
In environments characterized by impulsive noise, the probability density function (pdf) of noise is inaccessible in closed form and can only be obtained through complex numerical computations. This paper introduces a ...
Show more >In environments characterized by impulsive noise, the probability density function (pdf) of noise is inaccessible in closed form and can only be obtained through complex numerical computations. This paper introduces a simplified pdf using the trapezoidal method tailored for such noise. To enhance the reliability of these systems, error correction codes such as Low-Density Parity-Check (LDPC) codes are employed. Depending on the decoding algorithm used, these codes utilize the LLR function or the a posteriori probability (APP) function at their input, both of which rely on the pdf of the noise. In our simulations, we demonstrate that LDPC codes using the simplified pdf for LLR calculations with fixed α and γ, specifically with BPSK (Binary Phase Shift Keying) and ASK-4 modulations, can achieve performance in impulsive noise environments comparable to that obtained using the exact pdf.Show less >
Show more >In environments characterized by impulsive noise, the probability density function (pdf) of noise is inaccessible in closed form and can only be obtained through complex numerical computations. This paper introduces a simplified pdf using the trapezoidal method tailored for such noise. To enhance the reliability of these systems, error correction codes such as Low-Density Parity-Check (LDPC) codes are employed. Depending on the decoding algorithm used, these codes utilize the LLR function or the a posteriori probability (APP) function at their input, both of which rely on the pdf of the noise. In our simulations, we demonstrate that LDPC codes using the simplified pdf for LLR calculations with fixed α and γ, specifically with BPSK (Binary Phase Shift Keying) and ASK-4 modulations, can achieve performance in impulsive noise environments comparable to that obtained using the exact pdf.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
Submission date :
2025-01-23T09:07:27Z